INTRODUCE&colon;We Qingdao Haozhifeng Machinery Co&period;&comma;Ltd&comma; is a leading enterprise&comma; specializing in mechanical parts of torque for bushing with different size and material&period; Torque rod bushing is mainly used in mechanical system as auto&comma; truck&comma; tractor and so on which demand torque rod bushing spare part&period; With high metal strength&comma; torque rod bushing works long hours&period; Coated with kinds of surface treatment of environmental fluid&comma; torque rod bushing obtains strong mechanical properties and resistance to corrosion&period;